LFCN-3800+ Low Pass Filter Information

Overview

The LFCN-3800+ is a ceramic low pass filter designed for applications requiring high power handling and stable performance across a wide frequency range. It features excellent power handling capabilities, a compact size, and is constructed using Low Temperature Co-fired Ceramic (LTCC) technology.

Key Features

• Frequency Range: DC to 3900 MHz
• Passband Insertion Loss: Up to 1.5 dB
• Stop Band Rejection: Up to 30 dB
• Power Handling: 8W max. at 25°C
• Temperature Stable: Operating temperature range of -55°C to 100°C
• Small Size: Suitable for space-constrained applications
• Protected by U.S. Patent 6,943,646

Detailed Specifications

Electrical Specifications (at 25°C)

• Passband:Frequency Range: DC to 3900 MHzInsertion Loss: Max. 1.5 dBVSWR: Max. 1.3:1
• Stop Band:Frequency Range: 6000 MHz to 13000 MHzRejection Loss: Min. 20 dB (6000 MHz), Min. 30 dB (5700 MHz to 8300 MHz), Min. 20 dB (8300 MHz to 13000 MHz)VSWR: Max. 17:1

Mechanical Specifications

• Case Style: FV1206
• Dimensions:A: 0.126" (3.20 mm)B: 0.063" (1.60 mm)C: 0.037" (0.94 mm)D: 0.020" (0.51 mm)E: 0.032" (0.81 mm)F: 0.009" (0.23 mm)G: 0.169" (4.29 mm)H: 0.087" (2.21 mm)J: 0.024" (0.61 mm)K: 0.122" (3.10 mm)L: 0.024" (0.61 mm)M: 0.087" (2.21 mm)N: 0.012" (0.30 mm)P: 0.071" (1.80 mm)
• Weight: 0.020 grams

Pin Connections

• RF IN: Pin 1
• RF OUT: Pin 3
• GROUND: Pins 2, 4

Mounting Information

• Suggested PCB Layout: Refer to the provided PCB land pattern and layout recommendations.
• Tolerance: ±0.002 inches

Applications

• Harmonic Rejection: Effective in filtering out unwanted harmonics.
• VHF/UHF Transmitters/Receivers: Suitable for use in VHF and UHF communication systems.
• Laboratory Use: Ideal for precise laboratory applications requiring stable performance.

Ordering Information

• Model Number: LFCN-3800+
• RoHS Compliance: The "+" suffix indicates RoHS compliance.
• DC Isolation: For DC isolation to ground, coupling capacitors are recommended. Alternatively, the "D" suffix version supports DC IN-OUT with >100 MOhm isolation to ground.

Additional Information

• Test Board: Measured on Mini-Circuits Characterization Test Board TB-270.
• Warranty and Terms: Covered by Mini-Circuits standard limited warranty and terms and conditions. For full details, visit the Mini-Circuits website at www.minicircuits.com/MCLStore/terms.jsp.

Typical Performance Data

• Insertion Loss:40 MHz: 0.06 dB1550 MHz: 0.27 dB3060 MHz: 0.48 dB3900 MHz: 0.66 dB4510 MHz: 0.95 dB4760 MHz: 1.93 dB4850 MHz: 2.76 dB4930 MHz: 3.84 dB5120 MHz: 7.65 dB5380 MHz: 15.30 dB5700 MHz: 30.21 dB6000 MHz: 33.71 dB8300 MHz: 29.24 dB13000 MHz: 18.04 dB20000 MHz: 14.19 dB
• VSWR:40 MHz: 1.03:11550 MHz: 1.07:13060 MHz: 1.25:13900 MHz: 1.34:14510 MHz: 1.11:14760 MHz: 1.95:14850 MHz: 2.60:14930 MHz: 3.48:15120 MHz: 7.05:15380 MHz: 14.15:15700 MHz: 20.22:16000 MHz: 23.49:18300 MHz: 19.76:113000 MHz: 12.09:120000 MHz: 6.35:1